A new decavanadate polyoxovanadate nanocluster: synthesis, characterization and rapid adsorption of methylene blue

Abstract

<p>A new decavanadate polyoxovanadate nanocluster, [2-ampH]₆[V₁₀O₂₈]∙2H₂O (<b>1</b>), was synthesized through reaction between ammonium vanadate and 2-aminopyridine at pH = 2. Nanocluster <b>1</b> was characterized by IR, elemental analysis, and X-ray crystallography. <b>1</b> was found to adsorb and desorb dyes and may have widespread application in wastewater treatment. The utility of <b>1</b> for adsorption of methylene blue was studied. The adsorbed dyes can be easily desorbed, and <b>1</b> has full efficiency after five cycles.</p